68582857 has 4 divisors (see below), whose sum is σ = 78380416. Its totient is φ = 58785300.

The previous prime is 68582831. The next prime is 68582861. The reversal of 68582857 is 75828586.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-68582857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68582857.

It is not an unprimeable number, because it can be changed into a prime (68582887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4898769 + ... + 4898782.

It is an arithmetic number, because the mean of its divisors is an integer number (19595104).

Almost surely, 2^68582857 is an apocalyptic number.

It is an amenable number.

68582857 is a deficient number, since it is larger than the sum of its proper divisors (9797559).

68582857 is an equidigital number, since it uses as much as digits as its factorization.

68582857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9797558.

The product of its digits is 1075200, while the sum is 49.

The square root of 68582857 is about 8281.4767402922. The cubic root of 68582857 is about 409.3283808925.

The spelling of 68582857 in words is "sixty-eight million, five hundred eighty-two thousand, eight hundred fifty-seven".